"You see how many troubles and risks Citizen Bird has to endure at best, so that we House People should do everything we can to protect him and make his life among us happy. "You will have more use for your eyes than your ears, in naming the Warblers. Their plumage is almost always striking, but their voices are rather lisping than musical, though they sing pretty little snatches in the woods; but many of their call-notes sound more like the squeaks and buzzings of insects and tree-toads than like the voices of birds, and it will take time and practice before you can distinguish them apart. I have chosen only half a dozen species to tell you of, from the half-hundred that rove about the United States. The first, and one that you are the most likely to see, is the Black-and-white Warbler." THE BLACK-AND-WHITE WARBLER "There are exceptions to everything," said the Doctor, as he pointed to an old willow tree on the edge of the river woods, where he had taken the children to look for Warblers. "And the exception among the shy Warblers of these woods is that sociable little black-and-white fellow over there, who is creeping and swinging about the branches as if he was own brother to the Brown Creeper himself. This Black-and-white Warbler hides his nest in an overturned stump, or on the ground, and you may try for days in vain, to find one. But at the same time he spends his time running merrily through the orchard trees, even whispering his husky 'weachy-weachy-twee-twee, tweet' to the old queen apple by the study window." "Is that bird a Warbler?" asked Nat. "I thought he was some kind of a Nuthatch or a Woodpecker--he was with a whole lot of them up by the house last week." "I used to think so too," said Rap; "but now I see a difference. The body and bill of the Nuthatch is stouter, and not such a pretty shape, and his bill almost turns up. This Warbler is thinner, with a slender bill that curves a little down, like the Brown Creeper's. Then too, he has smaller and finer stripes than any Woodpecker." [Illustration: Black-And-White Warbler.] "What guild does he belong to?" asked Dodo. "To the Tree Trappers; most of the Warblers belong to this, while some have joined the Sky Sweepers, and a few the Ground Gleaners and Seed Sowers." "Look!" said Nat. "He has spent a long time on one twig and he doesn't seem to have cleaned off all the insects yet; he must have pretty good eyes." "Yes, and more than that," said the Doctor, "his eyes magnify much more than ours do, so that all objects appear far larger to a bird than they do to us, and they can see insects that we never notice." "I wonder if that little Warbler thinks spiders are crabs and flies chickens," said Dodo, so soberly that all the others laughed heartily. The Black-and-white Warbler Length five inches. Upper parts striped everywhere with black and white. Under parts white in the middle, with many black stripes on the sides. Has a weak and wheezy voice.